Nitrate Levels in the Rock Creek Park Watershed, Washington DC, 1: Measures of Central Tendency part of Examples
Spreadsheets Across the Curriculum module/Geology of National Parks course. Students examine the histogram of a positively skewed data set and calculate its mean, median and mode.

What are the Winds Blowing into Mammoth Cave? part of Examples
Spreadsheets Across the Curriculum/Geology of National Parks module. Students estimate the net volume of pollutants flowing into the Houchin's Narrows entrance of Mammoth Cave using actual air-flow and air-quality data from the park.

What is the Volume of a Debris Flow? part of Examples
SSAC Physical Volcanology module. Students build a spreadsheet to estimate the volume of volcanic deposits using map, thickness and high-water mark data from the 2005 Panabaj debris flow (Guatemala).

How Do We Estimate Magma Viscosity? part of Examples
SSAC Physical Volcanology module. Students build a spreadsheet to examine how magma viscosity varies with temperature, fraction of crystals, and water content using the non-Arrhenian VFT model.

Carbon Sequestration in Campus Trees part of Examples
Spreadsheets Across the Curriculum module. Students use allometric relationships to calculate tree mass from trunk diameter in a stand of trees in the Pacific Northwest.

A Percentage Stroll through Norris Geyser Basin, Yellowstone National Park part of Examples
Spreadsheets Across the Curriculum module/Geology of National Parks course. Students calculate percentages and percent differences to compare various measures of fumaroles, mud pots, hot springs and geysers in this introduction to hydrothermal features at Yellowstone NP.

Shifting Sands: Quantifying Shoreline and Dune Migration at Indiana Dunes National Lakeshore part of Examples
Spreadsheets Across the Curriculum module/Geology of National Parks course. Students use weighted averages and data from air photos from 1939 to 2005 to calculate the rate of retreat of the shoreline and the advance of the front of dunes along the shoreline.

Dunes, Boxcars, and Ball Jars: Mining the Great Lakes Shores part of Examples
Spreadsheets Across the Curriculum module/Geology of National Parks course. Students estimate the volume of sand in Hoosier Slide, a large dome-shaped dune quarried away in the 1920s from what is now Indiana Dunes National Lakeshore. They also estimate the number of boxcars to carry the sand, and the number of Ball jars produced from it.

From Isotopes to Temperature: Working With A Temperature Equation part of Examples
Spreadsheets Across the Curriculum module. Students build a spreadsheet to examine from a dataset the relation between oxygen isotopes in corals and the temperature of surrounding seawater.

Mined-Over Matter: Remembering Copper Mining at Keweenaw National Historic Park, Upper Peninsula Michigan part of Examples
Spreadsheets Across the Curriculum/Geology of National Parks module. Students calculate the amount of rock removed and the value of copper produced at the great Keweenaw District up to 1925.